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Emissivity extrapolating prediction method under action of F46 thermal control material atomic oxygen

A technology of emissivity and atomic oxygen, which is applied in the aerospace field, can solve the problems of high cost, high labor intensity, and long time consumption, and achieve the effects of improving efficiency, saving test cost, and reducing test intensity

Active Publication Date: 2010-07-21
NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of high labor intensity, time-consuming, high cost and low efficiency of the large cumulative flux atomic oxygen test on the ground of F46 materials, and provide satellite designers with a method to quickly obtain the emissivity of F46 materials under the action of atomic oxygen Performance Data Methods

Method used

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  • Emissivity extrapolating prediction method under action of F46 thermal control material atomic oxygen
  • Emissivity extrapolating prediction method under action of F46 thermal control material atomic oxygen
  • Emissivity extrapolating prediction method under action of F46 thermal control material atomic oxygen

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specific Embodiment approach

[0022] Using coaxial microwave source atomic oxygen ground simulation test equipment to carry out atomic oxygen interaction on F46 thermal control material, and establish the emissivity extrapolation formula. The specific implementation method is as follows:

Embodiment

[0023] Embodiment: F-46 material emissivity (ε h ) extrapolation

[0024] Source of material: General Department of China Academy of Space Technology

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Abstract

The invention relates to an emissivity extrapolating prediction method under the action of F46 thermal control material atomic oxygen, belonging to the technical field of aerospace. The method comprises the following steps: placing F46 thermal control material in an atomic oxygen ground test device, using atomic oxygen with a certain energy and density to test; in the testing process, measuring the emissivity (epsilon h) of F46 material to obtain the change data of emissivity under the action of atomic oxygen with a certain flux; after analyzing and fitting data, establishing a mathematical formula of F46 material under the action of atomic oxygen with a certain flux; and finally using the established mathematical formula to extrapolate the change data of emissivity (epsilon h) under the condition that the flux is more than the original flux of atomic oxygen. The method of the invention can be used to fast obtain the emissivity data of F46 material under the action of atomic oxygen with large flux, effectively improve the test efficiency and reduce the test cost.

Description

technical field [0001] The present invention relates to a kind of F46 thermal control material under the action of atomic oxygen emissivity (ε h ) extrapolation prediction method, which belongs to the field of aerospace technology. The present invention can be used to calculate the emissivity (ε h ). Background technique [0002] Emissivity of F46 thermal control material (ε h ) under the action of atomic oxygen will change with the action time of atomic oxygen or the increase of atomic oxygen flux. Therefore, the ground atomic oxygen simulation test should be carried out before the material is used. However, when the ground simulation test is carried out on the F46 thermal control material, the atomic oxygen flux reaches the actual atomic oxygen flux experienced by the material in orbit. Even if a high acceleration rate is used, the test time and test cost are unbearable. In the case of keeping the test conditions (such as the same atomic oxygen density) constant or wit...

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Application Information

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IPC IPC(8): G01N22/00
Inventor 李中华郑阔海赵琳
Owner NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
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